Flue construction.



E. COLE.

FLUE CONSTRUCTION.

APPLICATION FILED SEPT. I2, 1916.

Patented Apr. 23,1918.

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COMPANY, a oo'nronarron or stone-are temniatmctmma cnninezanni.

FLUE consrnncrron.

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'fii'peciflcation of letters Patent.

Application filed September 12, 1916. Serial No. 119,767.

To all whom it may concern Be it known that I, ELNATHAN COLE, a citizenof the United States, residing at Los Angeles, in the county of LosAngeles and State of California, have invented a new and useful FlueConstruction, of which the following is a specification.

My invention relates to flue construction, and the principal object ofthe invention is to provide a novel flashing means for making the fluewater-tight where it passes through a roof. Thee are coming into generaluse a large number of forms of small gas heating devices for which smallchi1nneys or flues must be provided in the consruction of buildings. Aconvenient and economical method of constructing gas flues or chimneysis by the use of round or rectangular tubes formed of pottery, stonewa"e, cement, or the like. Where such flues pass through a roof, it isnecessary to make a water-tight joint with the roof, so that there willbe no leakage around the flue.

My invention relates particularly to the means for making such awater-tight joint.

In the drawings, which are for illustrative purposes only:

Figure 1 is a cross section through a portion of a roof and a portion ofa rectangular flue illustrating my form of construction.

Fig. 2 is a similar View through a section of a roof and a section of around flue.

Fig. 3 is a cross section on a plane represented by the line 3-3 of Fig.1, looking in the direction of the arrows.

Fig. 4 is across sectional view on a plane represented by the line 4- 1-of Fig. 2, looking in the direction of the arrows.

In the construction of fines, tubes 11 are employed, these tubes beingbeveled off as shown at 12 to suit the upper surface of the roof 13through which the flue is to pass. An upper tube 14 is then beveled offto form a continuation of the tube 11, and a metal sleeve 15 is placedinside the tubes 11 and 14 so as to hold them in alinement and to assistinthe cementing operation to be described further. Before the upper tube14: is slipped in place over the sleeve 15, a flashing plate 16 isplaced over the sleeve 15, this flashing plate being covered at its fluestructure; a

upper surface by roofing material 17 and resting along its lower edge onroofing ma terial 18. The flashing plates 16 are provided withperforations 19, these perforations coming centrally in the wall of thetubes 11 and it when these tubes are placed together. Cement is placedunder the plate 16 and on top of the plate 16 before the tubes 11 and14: forced into place, this cement being excluded from the interior ofthe flue by the sleeve 15, so that a smoothv joint through the flue isprovided at all times. The cement is allowed to harden. The cement belowthe plate 16 and the cement above that plate are joined together bycement members in the perforations 19.

I claim as my invention 1. A construction for making. a watertightjunction between a flue and a roof comprising a lower due structurebelow the roof, said structure beingbeveled off flush with the uppersurface of the roof; an upper flue structure resting on said lower fluestructure; a flashing resting on the roof and projecting between saidupper flue structure and said lower flue structure; and a body of cementbinding said upper flue structure, said lower flue structure, and saidflashing together, said flashing being pro vided with openings throughwhich said body of cement extends.

2. A construction for making a watertight junction between. a flue and aroof comprising a lower flue structure below the roof, said structurebeing beveled ofl' flush with the upper surface of the roof; an upperflue structure resting on said lower flue structure; a sleeve inside ofand joining said upper flue structure with said lower flashing restingon the roof and projecting between said upper flue structure and saidlower flue structure; and a body of cement binding said upper fluestructure, said lower fine structure, and said flashing together.

3. A construction for making a watertight junction between a flue and aroof comprising a lower flue structure below the roof, said structurebeing beveled off flush with the upper surface of the roof; an upperflue structure resting on said lower flue structure; a sleeve inside ofand joining said Patented Apr; 2a, rails.

upper flue structure with said lower flue openings through Which saidbody of cestructure; a flashing resting on the roof and ment extends.pro ecting between said upper flue structure In testimony whereof, Ihave hereunto 0 and said lower flue structure; and a body of set my handat Los Angeles, California, this cement binding Said pper fluestructure, 31st dayrofvAugust, 1916, said lower flue structure, and saidflashing together, said flashing being provided with ELNATHAN COLE.

copies at this patent may be obtained for five cents each. by addressingthe Commissioner of Patents,

Washington, D. 0.

